Entry 3 senses · 2 variants Webster, 1913 Rosmarine · Ros·ma·rine · IPA n. n. 01 n. Dew from the sea; sea dew. 1. Dew from the sea; sea dew.[Obs.] “That purer brine And wholesome dew called rosmarine.” — B. Jonson. 2. Rosemary.[Obs.] 02 n. A fabulous sea animal which was reported to climb by means of its teeth to the tops of rocks to feed upon the dew. 1. A fabulous sea animal which was reported to climb by means of its teeth to the tops of rocks to feed upon the dew. “And greedly rosmarines with visages deforme.” — Spenser.